Stop mechanism for machinery.



v 1). M. COOPER. STOP MECHANISM FOR MACHINERY.

APPLICATION FILED DEC. 30, 1909.

Patented July 7, 19M

1 by l-cooco D. M. COOPER. STOP MECHANISM FOR MACHINERY. APPLIOATION FILED DEC. 30, 1909.

Patented July 7, 1914.

3 SHEBTS-SHEET 2.

mm am fa Ab 551, @642W D. M. COOPER. STOP MECHANISM FOR MACHINERY. APPLICATION FILED DEC. 30, 1909.

Patented July 7, 1914.

' 3 SHEETS-SHEET 3.

l 62 l 5 n A EJWEJ 9 2 I I 2 U 3 I i 6 l I u l [15 I :[1 o 0 F 5 z" 22 16% t 46 g liable to get out o fully described,

upon a frame 6, .in any suitable manner ranged on "be supported upon a'bracket .9, bolted at 10' to the frame 6.

UNITED STATES PATENT OFFICE.

DANIEL n5. 000223, or nocnns'rmt,

NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO AMERICAN LAUNDRY MACHINERY COMPANY, OF CINCINNATI, OHIO, A CORPO- BATION OF OHIO.

' s'ror MECHANISM 'ron n'acnmnmr.

' Specification of Letters Patent. Application filed December 80, 1909. Serial'llo. 535,566.

Patented July '7, 1914.

To all whom it may concern:

Be it known that I, DANIEL M. Coorrn. Rochester in the county of Monroe and- State of New York, have invented certain new and useful Improvements in Stop Mechanismjs for Machinery; and I do hereby declare-the-ifollowing to ban full, clear, and exacfldescription of the same, reference being had to. the accompanying drawings, forming a part, of this specification, and to the reference-numerals marked thereon.

The resent invention relates to mechanisms' or automatically stopping machines whenever an. abnormal condition exists in the latter, and the object thereof is to provide a construction which will be positive in its action, sim 1c in operation and not order.

To these and other ends the invention consists in certain improvements and, combinations of parts all as will be hereinafter more the novel features being pointed out in the claims at the end of the specification.

a horizontal section of the stop-mechanism removed from the machine; Fig. 4 is an elevation of the inner side of the stop -mecha-, nism when the latter is detached from the mangle, the parts being-shown in the posi-- tions which they occupy during the opera tion of the mangle; Fig. 5 is a detailview showing the positions of the partsflduring the stopping of the machine, and Figs. 6 and 7 are detail views. showing the manner in which the motor is stopped.

. In the present embodiment of the invention a shifter 1' is employed for breaking connection between a driving and a driven part.--.. The driving part in this instanceis in the form of a gear wheel 2, keyed at =3 to a-shaft 4 which 15 journaled in bearings ,5 the gearfwhe'el being driven as y a. P i n we; the shaft of a motor 8 which may The driven part .is pref-i latter for this purpose carrying a roller 26 with 24 engages on an slide, thus causing-the shifterto swing about its axis 15 and break connection between the The movement of .fected b a pull rod 32 dog an having its up ier end operatively 'connected to the finger the intake of the mangle, the connection beerably in the form of a sleeve 11 surroundmg the shaft 4 and having a pinion 12 at one end wlth which meshes a large gear 13 secured to the shaft 14 that is operatively connected to the machine to bedriven, the

latter, inthis instance, being in the form v of a mangle and indicated on the drawings by the letter A.

Preferably the shifter 1, which maybe pivoted at 15 to the-top of the frame 6, makes and breaks connection between the driving and the driven parts'by' means of a clutch consisting of an axially movable member 16 guided on the sleeve 11 by a key 16 and having clutch faces 17 adapted to cooperate with clutch faces 18 on the large gear 2. Connection between the shifter and the member 16 is established by having a yoke portion 19 on the shifter straddling the axially, movable member. 16 and provided with projections 20 traveling in an annular groove 21 in the said axially movable member. The shifter may be operated by a hand iece 22 which is rigidly-secured thereto,"and

y normal condition existsin-the machine to be stopped. The latter may comprise a movable member23 which in this'instance is in the form of a vertically movable and gravity 0 erated slide having a cam surface- 24 t ereon to cooperate with. the shifter 1, the having. an arm 25 which cam" surface upward movement of the driving-and the driven: parts. Preferably the slide'23 is actuateduby the engagement of a dog 27 .withone or more projections 28 on the gear wheelj13, the:dog in thisinstance being-pivoted at 29 to the slide and lying normally but of the path.- of the projections. An abutmen t or stop '30 on the dog may cooperate with the slide 23 to prevent the latter from moving too freely upon the slide.

p the dog 27- into thepath of 'the projections 28' is in this instance efpivoted at31t0 the card 33 located at mechanism controlled whenever an ab-'- tween the finger board and the rod being in the form of a pin 35 on the arm 36 extended from the shaft 37 of the finger board 33 and operating in a slot 34 in the rod. This pin and slot connection providesa lost motion connection between the dog 27 and the finger board and permits said dog to be released from the projections 28 without effecting the movement of the finger board, this release being accomplished preferably byl pulling, upwardly on the ban piece 38 w ich is extended from the slide 23. In addition to the finger board 33, there may be provided a finger board 39 located between the first andsecond rollers of the mangle and connected with the finger board 33 by a link 40. This additional finger board has "been provided for the reason that it has been'found that operatives will accidentally place their hands between the first and second rollers.

While the operation of the shifter will eifect'almost immediately the stoppa e of a machine, it is desirable also to stop t e motor, for the reason that the shifter may accidentally move again to establish connection between the driving and the driven parts.v

To this end the controlling member 41 of the controller 42 has a suitable means acting thereon, such as a spring 42*, which tends to move the said controlling member toa position to stop the motor. The controlling member is held in the on position by an electro magnet 43 which preferably is in shunt with the line and to cause this magnet to release the controlling memher in order that the latter may move to off position, a circuit 44 for short circuiting the magnet is provided and is controlled by spring finger contacts 45 which engage a contact 46 on the shaft of the finger board whenthe latter is moved bythe engagement of the fingers, or hand of the operative.

It will be noted that the frame 6 of the stop mechanism is separate from the mangle and it is held thereto by bolts 47, thus permitting the attachment and detachment of the stop mechanism. The stop'mechanism is also adapted to be attached to either side of the machine and'for this purpose is provided' with an opening 48 permitting the position of the shifter 1 to be changed to the other side of the shaft 4, and also with an opening 49 on the same side of the shaft through which theslide 23 may be operated. The lower guide 50 of the slide 23 may also bfitransferred to the'other side of the ma- 0 me.

- -In operation, should the hand of the operative' engage either finger board 33 or 39, the motion of the latter will pull upwardly on the rod 32 swinging the dog 27 from'the position shown in Fig. 4 into the path of one of the projections 28 which pushes upwardly onthe dog and causes an upward movementof the slide-23. The cam surface of the latter forces the shifter to turn about its' 'axis 15 and thus break connection between the driving and the driven parts.

It-is apparent that the shifter need not operate upon a clutch for breaking connection between a-driven and a drivmg part, but that this result might be accomplished by other constructions. The cam face.. ,be tween the movable member and the shifter provides a very effective connection which is not liable to get out of order and which may be quickly assembled and the arrangement of the dog upon a slide secures eater durability and gives greater ease 0 action.

I claim'as my invention: p

1. Astop mechanism comprising a shifter fordisconnectin a driven from a driving member,.a mova le memberhavingflacam surface thereon cooperating with the shifter, a dog pivotally mounted on the movable member and adapted to be moved independently thereof, a member moving with the machine to be stopped, and means for mov-' ing the dog into connection with said member to 'efi'ect-themovement ofthe shifter.

' 2. The combination with a shifter for effecting disconnection'between a driven and a driving member, of mechanism for effecting the movement of the shifter embodying a slide having a cam surface thereon cooperating with the shifter and a dog pivotally mounted on the slide "and adapted to be moved independently thereof, a part moving with the machine to be stopped, and means for connecting said dog with the nlipivingpart to cause the latter to shift the s 1 e.

3. The combination with a shifter for effecting disconnection between a driven and a drivmg member, of mechanism for effecting the movement of the shifter embodying a gravity controlled slide having a cam surface thereon cooperating with the shifter and a dog pivotally mounted on the slide and adapted to be moved -independently thereof, a rotary member moving with the machine to be stopped having a projection thereon, and means for moving said dog into the path of the projection;

4. The-combination with a shifter for efl fecting disconnection between a driven and a driving membera of mechanism for effecting the movement of the shifter embodying a memberhaving a cam surface thereon co operating with the shifter and a do pivotally mounted on said member and a apted to be moved independently thereof, a member moving with the machineto be stopped, and a finger board having pivotal connection with the dog to move the latter into the path of the moving member.

5; The combination with a shifter for effecting disconnection between a driven and finger board, and pivotally connected to the a driving member, of mechanism for effectdog to move the latter into the path of the 10 ing the movement of the shifter embodying moving member.

a, gravity controlled slide aving a cam surface thereon cooperating with the shifter DANIEL COOPER and a dog carried by the slide, a member Witnesses:

moving with the machine to be stopped, a R0131. V. LLon,

finger board, and a pull bar connected to the H. G. .STALLKNIGHT. 

